Morse Micro HaLowLink up to 2.11.11 morse.ko morse_vendor_find_vendor_ie out-of-bounds

Summaryinfo

A vulnerability identified as critical has been detected in Morse Micro HaLowLink up to 2.11.11. Affected by this issue is the function morse_vendor_find_vendor_ie in the library morse.ko. The manipulation leads to out-of-bounds. This vulnerability is uniquely identified as CVE-2026-7764. No exploit exists. You should upgrade the affected component.

Detailsinfo

A vulnerability, which was classified as critical, has been found in Morse Micro HaLowLink up to 2.11.11. This issue affects the function morse_vendor_find_vendor_ie in the library morse.ko. The manipulation with an unknown input leads to a out-of-bounds vulnerability. Using CWE to declare the problem leads to CWE-125. The product reads data past the end, or before the beginning, of the intended buffer. Impacted is confidentiality, integrity, and availability. The summary by CVE is:

An out-of-bounds read vulnerability in the morse.ko HaLow Wi-Fi kernel driver in Morse Micro HaLowLink 2 software versions prior to 2.11.12 allows an unauthenticated attacker within radio range to disclose a small amount of kernel heap memory or cause a Denial of Service (kernel oops/panic) via a crafted 802.11ah beacon or probe response frame containing a malformed Vendor Information Element. The function morse_vendor_find_vendor_ie() does not validate the IE length against the expected structure size before its result is passed to morse_vendor_rx_caps_ops_ie() and morse_vendor_fill_sta_vendor_info(), which read at fixed offsets into the IE data. Because the length check only requires the IE to be longer than 3 bytes, an attacker can supply an undersized IE, causing a heap out-of-bounds read of up to 9 bytes. No authentication, association, or user interaction is required.

The advisory is shared at morsemicro.com. The identification of this vulnerability is CVE-2026-7764 since 05/04/2026. The exploitation is known to be easy. No form of authentication is needed for a successful exploitation. It demands that the victim is doing some kind of user interaction. Technical details are known, but no exploit is available.

Upgrading to version 2.11.12 eliminates this vulnerability.

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Productinfo

Vendor

• Morse Micro

Name

• HaLowLink

Version

• 2.11.0
• 2.11.1
• 2.11.2
• 2.11.3
• 2.11.4
• 2.11.5
• 2.11.6
• 2.11.7
• 2.11.8
• 2.11.9
• 2.11.10
• 2.11.11

CPE 2.3info

• 🔒
• 🔒
• 🔒

CPE 2.2info

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• 🔒
• 🔒

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Entryinfo

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